Improvement in grain-binders



2 Sheets-Sheet 1'r D. MCPHERSONf GRAIN-BINDER. 150,176,800.' Padrfenmad May 2,1876'.

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N. PETERS. PHOTO-L\THDGRAPHER, WASHINGTON, D CA y UNITED :STATES PATENT OFFICE.

`DANIEL MOPHERSON, OF CALEDONIA, NEW YORK.

IMPROVEM'ENT lN GRAIN-BINDERS.

Specification forming part of Letters Patent No. 176,800, dated May 2, 1876; application filed Ju1y.e0, 1875.

To all whom it may concern:

Beit known that I, DANIEL MoP-HERsoN, of Galedonia,in the county of Livingston and State of New York, have invented certain new and useful Improvements in Self Binding Harvesters and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompawl in different positions.' Fig. 6 is any elevation of the same. Fig. 8 is an inverted view of the wire-clamping jaw d, showing the slot g. Fig. 9 is the top plate L over the twister. Fig. 10 is a front sectional elevation of the gaveler,V binder-needle, and twisterwheel. Fig. 11 is a top view of the mutilated gear-wheels for giving the intermittent movement to the gaveler. Fig. 12 is a plan view of the governing lug under the twister-pinion, and the cam-walls for controlling it, represented on a flat serface. Fig. 13 is a modication of the compressor.v

` The nature of this invention will be better understood by reference to the-drawings and specification.

My invention is more especially applicable to that class of harvesters in which the grain is -elevatedover the carrier-wheel, and 'the binding apparatus is arranged upon the opposite side of said wheel from the cutter-bar.

The wire-carrier or needle N is attached to the horizontal binder-bar B, which is provided with suitable bearings on the rods H, upon lwhich it is reciprocated vertically by means of the pitmen P andcranks I from the shaft lS. This shaft is driven from the main wheel W by bevel-wheels Q. The feet of the twisterframe F rest-s uponjournal-bearings on the shaft S, and the upper portion is secured to lthe bar or beam T of `the frame by the bracebar D. Between these bearings is keyed upon the shaft the mutilated or compound gearwheel Gr. This gear-wheel is constructed as shown in Figs. 1, 3, 4, and 10. About threeeighths of the circle is cut away, as seen in Fig. 10, and a segment of the gear, containing one-half the number of teeth there is in the twister-pinion h3, is arranged with the teeth to face'in the opposite direct-ion, and relatively between the termini of the longer segment, as 'shown in Fig. 10, and sufficiently offset, as shown in Fig. 4, to gear into opposite sides of the pinion alternately, the gear-wheel G revolving Acontinously in the same direction. This wheel is provided with a rim, k, below or within the circle of the teeth, on each segment, and the pinion h3 has an oblong rectangular lug e, Figs. 1, 2, and 12. By means of this lug, when the point j of the segmental gear is leaving the pinion, in passing through between the raised points c and t", the teeth of the 'pinion are forced to register to those 'of the opposite segment g, and after that passes around, the pinion is similarly retained iu position by one of the long sides of the lug bearing against the raised face of the track k; `after said lug passes between the points t' and 0'., to register to tbe end or point j of the Jong segment, when the lug e is released from the raised `portions of the track 7c, and the pinion permitted to turn. I

It will be seen that one revolution ofthe shaft S gives several revolutions to the twister, one-half of a reverse4 turn, and then an interval of rest. This latter occurs while the wire-carrier or needle N is completing its downward stroke, which movement places the second end of the wire band across the two sets of jaws. The tongue or',platenblcloses upon and grasps between it and the-head d both wires, and cuts them oi between ythe grasp. At about the same instant the lower jaw h1 is opened to discharge the cutting and grasp the end of `the'wire before the wirejcarrier rises to receive the next gavel.

The twister-head-is constructed as shown in Figs. 4 and 8, and is composed of the main provided with asquare central opening which is fitted to the square section b of the pinionshaft s. Just below the square section b the shaft is provided with a projection to which the pawl p is hinged at a. rlhe pawl is provided with a stud or lug, a', that acts in the groove g of' the head. The head is fitted to tnrn loosely upon the shaft, but it is driven by it, in either direction,by the clamp b upon the square section and the pawl p. The pawl is fitted to fold in, so as to rotate with the cylindrical recess formed in the top of the twister-frame, shown in Figs. 5, 6, and 7, at 'r'. When the shaft turns backward the clamp b is opened by the point of' the pawl striking the spring-point f, whichcauses said head to assume the position shown in Fig. 5. The pivot or lug a -standing in the groove or slot g forces the head to the position indicated by the dotted lines; and when the shaft is again driven forward, the clamp b being the driver of' the head d, the point of' the pawl strikes the spring-point f', thus causing the clamp and head to be firmly clamped together, as indicated in Fig. 7, grasping between them and cutting oi' the two ends of the wire encircling the bundle and constituting the band, and twisting them together. The ends of the' wire band reach from the bundle down through the opening y in the top plate L, Fig. 9, while the twisting is going on.

The wall of' the circular recess r' forms nearly a full circle, but is open on the side opposite the wire-carrier, and a short section, formed by a spring on each side ofthe openin g, is made to have its points f and f reach slightly within the circle, so as to catch the point ofthe pawl p, when the rotation of' the shaft is reversed in either direction.

The gaveler is composed of two 0r more arms, C, Figs. 1,2, and 10. They are fixed to the shaft S1, which is driven `by the shaft S through the shat'tS2 and suitable gearing.

- shown in Fig. l0. The pinion J has a lug, fr,

projecting beyond the opposite face of' the wheel Gl, which has a lug, o, so arranged as to strike the lug?A and f'orce the pinion to turn yand the teeth of the two wheels to register.

One revolution is thereby given to the pinion, and also to the gaveler. A similar lug, o maybe fixed upon the opposite side of gear G1 to prevent breakage of the parts if' the machine should happen to be moved backward at any time.

At the lower edge of the gaveler-concave C' I provide a binding-shelf or apron, M, sufciently depressed to permit the beam B to move below the sweep of` the revolving gaveler-arms C, and thus allow them to revolve over the bar, directly after which the latter rises again to its upper or open position preparatory to receiving the next gavel from the revolving arms (l.

I use a spring compressor, which may be applied to the reciprocating binder-bar B, as shown. in Figs. l, 2, and l0. One or more guards, G2, for the grain, while being elevated -and delivered to the concave receiver C', may

be used. One end is fixed to the seat-plank, where the wire-reel R is placed, and the other end is hun g loosely to the shaft S1. There may be ribs attached, vertically, upon the concave C for the ends of the gaveler-arms to sweep between.

The wire w passes from the reel R (shown in dotted lines) through the loops l, and the eye in the end of' the wire-guide h2, thence down to and through the eye in the point of' the needle N, Fig. 3. The compressor E is permitted to yield more or less, according to the size of' the bundles, by means of' the spring K. Y

The ordinary wind-board Q2 may be ap-f plied at the front end of the gaveler-concave.

Instead of the spring-points f and f' the wall may be made rigid, and a spiral spring, orrubber or other cushion, put into each side of' the lug, to which -the pawl 'p is hinged, to start it outward asv either reverse movement commences.

The operation of' my invention, brieli y stated, is as follows: The cut grain is delivered from the elevator A into the gaveler-concave C; When the binder-bar B,'to which the wirecarrier or needle is attached, is in its upward position, the wire is stretched from between the lower clamping-jaws h and h1 to the point of' said needle or wire-carrier N. The gavelerarms G are then revolved, taking in what grain may have been deposited in the concave, and forcing it against the wire. The gavel is thereby carried beyond the vertical line of travel of' the wire carrier N, (reeling off' the necessary amount of wire to form the band,) and as it descends the wire is made to encircle the gavel, and vthatend or portion 'of' the wire is also delivered to the grasp of the head d and jaw b', by which they are rmly clamped, cut of't', and twisted together. While this is being done, and bef'ore the bar B rises, the lower clampingjaw h1 opens and discharges the end or cutting just formed, and closing immediately upon the' end just presented to its grasp by the last descent of the needle N. The bar B andv needle now rise again and deliver the bundle just bound, when the several operations of' gaveling, &c,. are repeated.

What l claimas my invention is- 1. In combination with the intermittentlyrotating gaveler C,A vertically reciprocating arm B, and wire-carrier N, the depressed section M at the edge of the gaveler-concave, whereby the gaveler arms are permitted t0 Waeco '3 posite sides of the twister-shaft, for the purpose of rotating it alternately in opposite directions, With an interval of rest.

3. In combination with the compound bevelgear wheel G, constructed substantially as shown, and bevel-pinion h, the rectangular lug o and bearings t and i' and c and of, for the purpose of insuring the registry of the teeth of the pinion with those of the two segments of the gear-Wheel G, when the pinion ispassing from one to the other, as the wheel G revolves.

4. In combination With the revolving Wireclamping head d,constructed, substantially as shown, with a cuttingedge, fv, the revolving clamp b', acting conjointly to grasppcutfand twist together the two lends of the Wire forming 4the band.

5. vIn combination with the head d and clamp b', the Vformer provided With the radial slot or groove g', the governing-pawl p and pin a.

6. In combination with the loose head d and latch or clamp b tixed to the twister-shaft s, the pawl p hinged to the latter, and provided With the adjusting-pin af, for the purposes set forth. 4

7. In combination with the head d, clamping-jaw b', and swinging pawl p, the circular recess r and spring-points f and f', having an opening between them, for the purposes set f forth. f

`8. The combination, with .the fixed jaw h land pivoted or swinging jaW h1, the spring t and annular track u, provided with the camnotch n, for the purposes set forth.

D, McPHERsoN. Witnesses:

WM. S. LOUGHBOROUGH, E. B. WHITMORE. 

